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Finding the Fourth Proportional to 652,278,899.34, 978,418,347.39 and 237,786,805.86

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Solution

The fourth proportional to 652,278,899.34, 978,418,347.39 and 237,786,805.86 is: 356,680,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,278,899.34 : 978,418,347.39 = 237,786,805.86 : x
  2. Step 2: Convert to fraction form
    652,278,899.34/978,418,347.39 = 237,786,805.86/x
  3. Step 3: Cross multiply
    652,278,899.34x = 978,418,347.39 × 237,786,805.86
  4. Step 4: Simplify right side
    652,278,899.34x = 232,654,973,620,687,968
  5. Step 5: Solve for x
    x = 232,654,973,620,687,968/652,278,899.34
  6. Step 6: Final answer
    x = 356,680,208.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.